/*
 * Copyright Terracotta, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.ehcache.impl.internal.store.heap.holders;

import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;

import org.ehcache.impl.internal.store.heap.holders.BaseOnHeapKey;
import org.ehcache.impl.internal.store.heap.holders.CopiedOnHeapKey;
import org.ehcache.impl.internal.store.heap.holders.OnHeapKey;

public class LookupOnlyOnHeapKey<K> extends BaseOnHeapKey<K> {

  private final K actualKeyObject;

  public LookupOnlyOnHeapKey(K actualKeyObject) {
    super(actualKeyObject.hashCode());
    this.actualKeyObject = actualKeyObject;
  }

  @Override
  public K getActualKeyObject() {
    return actualKeyObject;
  }

  @SuppressFBWarnings("EQ_CHECK_FOR_OPERAND_NOT_COMPATIBLE_WITH_THIS")
  @Override
  public boolean equals(Object other) {
    if (other instanceof CopiedOnHeapKey) {
      return actualKeyObject.equals(((CopiedOnHeapKey)other).getCopiedKey());
    } else if (other instanceof OnHeapKey) {
      return actualKeyObject.equals(((OnHeapKey)other).getActualKeyObject());
    }
    return false;
  }
}
